99902712 has 128 divisors (see below), whose sum is σ = 310464000. Its totient is φ = 26085888.

The previous prime is 99902653. The next prime is 99902771. The reversal of 99902712 is 21720999.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99902653) and next prime (99902771).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325263 + ... + 325569.

It is an arithmetic number, because the mean of its divisors is an integer number (2425500).

Almost surely, 2^99902712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99902712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155232000).

99902712 is an abundant number, since it is smaller than the sum of its proper divisors (210561288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99902712 is a wasteful number, since it uses less digits than its factorization.

99902712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 99902712 is about 9995.1344163048. The cubic root of 99902712 is about 464.0083108896.

The spelling of 99902712 in words is "ninety-nine million, nine hundred two thousand, seven hundred twelve".